The story starts in Chungking where Lin Jing (Anna May Wong) is a schoolteacher/Chinese agent. During class the city is bombed and strafed by Japanese warplanes. There's a particularly poignant scene where a child is killed that ends the first act. For me, this first act was the best part of the movie.
Next, apparently after having traveled on assignment, she boards a bus with several others traveling to Chungking along the Burma road. Here the story becomes a cliche filled spy mystery, the resolution of which wasn't any more entertaining. The movie ended with a long silent scene of the spy looking hopelessly to a crowd of Chinese peasants who stare back stoically, culminating with the spy's brutal death. And I do mean long scene.
I enjoyed seeing Dan Seymour playing the usual slimy character he does so well. Leslie Denison did well enough with his material. I didn't recognize Noel Madison as Me-Hoi. I've only seen him play baby-faced gangsters, as he did in The Black Raven
. You can also see Anna May Wong in Limehouse Blues
I downloaded the 700MB AVI file. The video has a greenish tint, easily removed. Images are soft and sometimes washed out. The dialog is sometimes hard to understand, but is good overall.